diff --git a/binder/postBuild b/binder/postBuild
index 4d537125..fbf11018 100644
--- a/binder/postBuild
+++ b/binder/postBuild
@@ -1 +1 @@
-jupyter labextension install @jupyterlab/debugger@0.3.0-alpha.1 --debug
+jupyter labextension install @jupyterlab/debugger@0.3.0-beta.1 --debug
diff --git a/package.json b/package.json
index 8908d6bc..ea6f0f92 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/debugger",
-  "version": "0.3.0-alpha.1",
+  "version": "0.3.0-beta.1",
   "description": "JupyterLab - Debugger Extension",
   "keywords": [
     "jupyter",